Low

- 1 to 2 people

- 1 to 2 bedrooms

- Weekly washing, little heating and cooling

- Employed full time, spend little time at home

Medium

- 3 to 4 people

- 3 bedrooms

- Washing a few times a week, regular heating and cooling

- Employed full time, children at school, at home most evenings and weekends

High

- 4 to 5+ people

- 4+ bedrooms

- Daily washing, regularly heating and cooling, run multiple appliances

- Home evenings, weekends and some days